William Spanos, MD
Otolaryngology · Sioux Falls, SDNPI 1184833584
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $16,401 of the $21,301 with a category attached, or 77.0%. 28 manufacturers reported payments, led by Ambu Inc. at 46.9% of the total. Reporting peaked in 2019 at $12,029 and has fallen 93.0% since, to $845 in 2025. Among otolaryngology clinicians in SD with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 74 payments — averaging $287.86 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Ambu Inc.$10K
- E.r. Squibb & Sons, L.L.C.$3K
- Regeneron$2K
- Regeneron Healthcare Solutions, Inc.$2K
- Medtronic$441
- Baxter Healthcare$365
- plus $3K from 22 others
Across 165 payments — averaging $8408.02 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Merck$1.1M
- Bristol Myers Squibb$218K
- E.r. Squibb & Sons, L.L.C.$63K
What the payments were for
- Consulting fees$16,40177%
- Travel & lodging$1,0705%
- Food & beverage$3,81218%
- Education$180%
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| Ambu Inc. | 1 | $10,000 |
| E.r. Squibb & Sons, L.L.C. | 2 | $3,000 |
| Regeneron | 1 | $2,400 |
| Regeneron Healthcare Solutions, Inc. | 11 | $2,337 |
| Medtronic | 8 | $441 |
| Baxter Healthcare | 5 | $365 |
| Tactile Systems Technology Inc | 9 | $344 |
| Intuitive Surgical | 2 | $288 |
| Genentech, Inc. | 3 | $207 |
| Inari Medical, Inc. | 1 | $189 |
| Smith+Nephew | 2 | $184 |
| Acclarent, Inc | 3 | $181 |
| Merck | 2 | $138 |
| Janssen Scientific Affairs, LLC | 1 | $136 |
| Stryker | 1 | $126 |
| Organogenesis Inc. | 1 | $124 |
| Conmed Corporation | 1 | $118 |
| Inspire Medical Systems, Inc. | 1 | $113 |
| KARL Storz Endoscopy-america | 2 | $111 |
| Accuray Incorporated | 2 | $99 |
| Tempus AI, Inc | 1 | $97 |
| Solventum Corporation | 1 | $71 |
| Kls-martin L.p. | 4 | $70 |
| Integra Lifesciences Corporation | 3 | $55 |
| Intersect ENT, Inc. | 2 | $33 |
| Sanofi | 2 | $30 |
| Pfizer | 1 | $23 |
| Johnson & Johnson | 1 | $21 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
- LIBTAYO$4,332
- OPDIVO$600
- Da Vinci Surgical System$288
- FLOWTRIEVER CATHETER, S$189
- CT THROMBECTOMY SYSTEM KIT$189
- RYBREVANT$136
- 1788$126
- TISSEEL$125
- PURAPLY WOUND MATRIX$124
- AIRSEAL$118
- PTEYE PARATHYROID DETECTION SYSTEM$118
- Inspire Upper Airway Stimulation System$113
- FUSION$104
- TECENTRIQ$102
How this compares
$21,301 in reported general payments places this provider in the 90th percentile of 39 otolaryngology providers in South Dakota.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Levothyroxine Sodium | 145 | $843 |
| Oxycodone Hcl | 29 | $128 |
| Calcitriol | 14 | $87 |
| Amoxicillin | 31 | $78 |
| Chlorhexidine Gluconate | 21 | $61 |
Paid to pharmacies, not to this prescriber.
Other otolaryngology in Sioux Falls
- Huan ZhangSioux Falls$28K
- Mark JamesonSioux Falls$10K
- Jaishree LerewSioux Falls$7K
- Chengetai MahomvaSioux Falls$3K
- Gregory DanielsonSioux Falls$2K
- Paul CinkSioux Falls$2K
- Thomas TamuraSioux Falls$2K
- Kenneth ScottSioux Falls$1K
- Daniel ToddSioux Falls$1K
- Peter KasznicaSioux Falls$1K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.